DFSD023E Data set volume and storage class are mutually exclusive

Explanation
 On one of the RDDS panels from the Manage Resources
selection on the IMS Application
Menu panel, you have entered values for both the RDDS data set volume
and DFSMS.  These two specifications are mutually exclusive.

System action
 ISPF panel processing awaits correction of the
error.

System programmer response
 Specify either RDDS data set volume
or STORCLAS, but not both.

Module
REXX programs DFSRRDD1, DFSRRDD2, DFSRRDD3, DFSRRDD4 DFSRRDD5